1Suitable for MAKITA 18V lithium battery BL1830 BL1830 BL1850 BL1860 BL1830B BL1840B BL1850B BL1860B+MT20DL adapter. 2The product is small in size and light in weight, and can be easily interchanged between different batteries. 3Replacement for 20V lithium battery DCB200 DCB201 DCB203 DCB204 DCB205 DCB206, can be used on power tools. 4If you want to use a more environmentally friendly lithium battery for your nickel battery tools at home, you don't need to spend a lot of money to buy an electric drill. 5Easy to install, the top of the adapter is connected to power tool, and the bottom is connected to a 20V lithium battery.